CN204357589U - A kind of air filter with dust exhaust port - Google Patents

Abstract

The utility model discloses an air filter with a dust outlet, which comprises: a shell and an upper cover, one end of the shell is provided with an opening for placing a filter core, and two symmetrically arranged inlets are arranged on the outer wall of the end. Air port; the other end of the housing is provided with an installation port and a dust discharge port connected to the intake pipe of the diesel engine, and the inside of this end is provided with an installation groove for accommodating the filter element; And it is locked by the locking mechanism. The inner side of the upper cover is provided with an air guide screen that makes the air entering the air filter form a spiral air flow. The space formed by the upper cover and the housing together plays the role of fixing the filter element. The utility model pre-filters the gas entering the air filter of the single-cylinder diesel engine, reduces fine particles contained in the gas entering the cylinder as much as possible, and prevents the filter element of the air filter of the diesel engine from clogging and failing as much as possible.

Description

An air filter with a dust outlet

technical field

The utility model belongs to the technical field of air filters, in particular to an air filter with a dust discharge port suitable for a single-cylinder diesel engine.

Background technique

With the rapid development of social economy, vehicles have become one of the important means of transportation in people's daily life. The engine is an important part of the vehicle, and it must suck in a large amount of air during its work. If the air is not filtered, the air will be Suspended dust is sucked into the cylinder, which will accelerate the wear of the cylinder of the piston group. Larger particles will enter between the piston and the cylinder, which will cause serious "squeeze the cylinder". The air filter is installed in front of the intake pipe. To filter out dust and sand particles in the air, to ensure that sufficient and clean air enters the cylinder. In order to ensure the power of the diesel engine, it is necessary to reduce the air intake resistance while ensuring the air intake volume, which needs to ensure the smooth flow of each section of the intake air flow. The air filter of the existing single-cylinder diesel engine cannot meet the above requirements.

Contents of the invention

In view of the above-mentioned technical problems, the purpose of this utility model is to provide an air filter with a dust outlet to solve the above-mentioned deficiencies in the prior art, reduce the fine particles in the gas in the intake cylinder as much as possible, and prevent single The air filter element of the cylinder diesel engine is clogged and invalid.

In order to achieve the above purpose, an air filter with a dust discharge port of the present utility model includes: a housing and an upper cover, one end of the housing is provided with an opening for placing the filter element, and the outer wall of the end is provided with two There are two symmetrically arranged air inlets; the other end of the housing is provided with an installation port connected to the diesel engine air intake pipe and a dust outlet, and the inside of this end is provided with an installation groove for accommodating the filter element; the upper cover is set on the above housing. There is one end with an opening, which is locked by a locking mechanism. There is an air guide screen on the inside of the upper cover to make the air entering the air filter form a spiral air flow. After the above-mentioned upper cover and the housing are closed, the upper cover and the housing There is a certain gap between the outer walls.

Preferably, the above-mentioned locking mechanism is composed of buckles provided on the housing and slots provided on the upper cover.

Preferably, the above-mentioned locking mechanism is composed of a slot provided on the housing and a buckle provided on the upper cover.

Preferably, the above-mentioned dust outlet is provided with a dust jacket.

Preferably, the above-mentioned installation groove is circular and accommodates a cylindrical filter element therein.

Preferably, the outer wall of the housing is designed in a circular shape, and a reinforcing rib is provided in the middle of the outer wall.

In the air filter with a dust outlet of the utility model, during the working process of the single-cylinder diesel engine, the gas enters the housing of the air filter through the air inlet below the upper cover, and forms a spiral air flow under the negative pressure of the diesel engine. , The spiral airflow will concentrate the larger dust and sand particles in the air to the dust discharge port under the housing, and the smaller dust will be filtered by the filter element to provide clean and sufficient air to the engine.

The beneficial effects of the utility model:

This design pre-filters the gas entering the air filter of a single-cylinder diesel engine to minimize fine particles in the gas entering the cylinder, and prevent the filter element of the air filter of the diesel engine from clogging and failing as much as possible.

Description of drawings

FIG. 1 is a cross-sectional view of the air filter of the dust outlet of the present invention.

FIG. 2 is a side view of the housing of the air filter of the dust outlet of the present invention.

FIG. 3 is a structural view of the upper cover of the air filter of the dust outlet of the present invention.

FIG. 4 is a schematic structural diagram of the air filter of the dust outlet of the present invention.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not limitations of the utility model.

Referring to Figures 1 to 4, an air filter with a dust discharge port of the present invention is connected to the intake pipe of a single-cylinder diesel engine, and includes: a housing 1 and an upper cover 2, the housing 1 One end is provided with the opening 11 that is used to place the cylindrical filter element 3, and this opening 11 is circular, and the outer wall of this end is provided with two symmetrically arranged air inlets 12, and the air inlets 12 are symmetrically arranged, and the negative pressure of diesel engine work Depression is easy to form a spiral airflow, and the spiral airflow will concentrate the larger dust and sand particles in the air and discharge them in the dust outlet 15 below the housing; in a preferred embodiment, the outer wall of this end is also provided with two symmetrical settings The first reinforcing rib 13, the first reinforcing rib 13 corresponds to the above-mentioned air inlet 12, the two are symmetrical to each other, and the structure is beautiful; the other end of the housing 1 is provided with an air intake pipe connected to the diesel engine (not shown in the figure) Installation port 14, which is sleeved on the air intake pipe, is fixed by a throat hoop outside, and the adjacent position of this installation port 14 is also provided with a dust discharge port 15, and the dust discharge port 15 can concentrate larger dust and sand grains The open end is provided with a dust exhaust sleeve 4; the inside of the housing 1 is provided with a mounting groove 16 for accommodating the filter element 3, which is circular in design and practical for the structure of the filter element; the outer wall of the housing 1 is circular in design , and the middle part of the outer wall is provided with a second rib 17 for strengthening the shell to prevent cracking. The upper cover 2 is set on the end of the casing 1 provided with the opening 11, and is locked by a locking mechanism. The inner side of the upper cover 2 is provided with an air guide screen 21 that makes the air entering the air filter form a spiral airflow, which Cooperate with the above-mentioned installation groove 16 to accommodate and fix the filter element 3 respectively, and the space formed by the upper cover 2 and the casing 1 plays the role of fixing the filter element 3 .

The housing 1 is also provided with a dust-proof screen 10 corresponding to the above-mentioned installation groove 16, and one end of the filter element 3 is arranged between the above-mentioned two.

After the housing 1 accommodates the filter element 3, a cavity 19 is provided between the inner wall of the housing 1 and the filter element 3 to accommodate the air entering the air filter.

After the above-mentioned upper cover 2 is matched with the housing 1 , there is a certain gap between the upper cover 1 and the outer wall of the housing 2 , so that air can enter the air inlet 12 on the housing 2 .

In this embodiment, the above-mentioned locking mechanism is composed of a slot 18 provided on the housing 1 and a buckle 22 provided on the upper cover 2, and the slot 18 and the buckle 22 are respectively symmetrically arranged on the housing 1 or the top. On the outer wall of the cover 2, after the upper cover 2 is sleeved on the casing 1, the buckle 22 is moved to lock it on the slot 18 to lock it, thereby forming an overall structure of the air filter, and the single-cylinder diesel engine is working During the process, the gas enters the housing 1 of the air filter through the air inlet 12 under the upper cover 2, and forms a spiral airflow under the negative pressure of the diesel engine. The spiral airflow will concentrate the larger dust and sand particles in the air. It is discharged from the dust outlet 15 below the housing, and the smaller dust is filtered by the filter element to provide clean and sufficient air to the engine. When the use of the air filter reaches a certain period of use, the buckle 22 can be moved to separate it from the slot 18, the upper cover 2 is separated from the housing 1, and the filter element 3 is taken out from the installation groove 16 to replace the filter element 3.

In other embodiments, the above-mentioned locking mechanism is composed of a buckle provided on the housing and a slot provided on the upper cover, and the locking between the upper cover and the housing is realized by snapping the buckle into the slot For the specific structure, reference may be made to the above-mentioned embodiments, which are only replacements of the above-mentioned structures, which are easily understood by those skilled in the art, and the applicant will not elaborate here. And, the locking mechanism can also adopt other structures, not limited to the two structures mentioned above.

There are many specific application ways of the utility model, and the above descriptions are only the preferred implementation modes of the utility model. Improvements, these improvements should also be regarded as the protection scope of the present utility model.

Claims (6)

1. An air filter with a dust outlet, characterized in that it comprises: a housing and an upper cover, one end of the housing is provided with an opening for placing the filter core, and the outer wall of the end is provided with two symmetrically arranged The air inlet; the other end of the housing is provided with an installation port and a dust discharge port connected to the diesel engine intake pipe, and the inside of this end is provided with an installation groove for accommodating the filter element; the upper cover is set on the end of the above housing with an opening , and locked by the locking mechanism, the inner side of the upper cover is provided with an air guide screen that makes the air entering the air filter form a spiral air flow. There is a certain gap. 2. The air filter with a dust outlet according to claim 1, wherein the above-mentioned locking mechanism is composed of a buckle on the housing and a slot on the upper cover. 3. The air filter with a dust outlet according to claim 1, wherein the above-mentioned locking mechanism is composed of a slot provided on the housing and a buckle provided on the upper cover. 4. The air filter with a dust outlet according to claim 1, characterized in that, the dust outlet is provided with a dust jacket. 5 . The air filter with a dust outlet according to claim 1 , wherein the above-mentioned installation groove is circular, and a cylindrical filter element is accommodated therein. 6 . 6 . The air filter with a dust outlet according to claim 1 , wherein the outer wall of the housing is designed in a circular shape, and a reinforcing rib is provided in the middle of the outer wall. 7 .